Home / 13,704.48-18,912.74-7,736.14

Finding the Fourth Proportional to 13,704.48, 18,912.74 and 7,736.14

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Solution

The fourth proportional to 13,704.48, 18,912.74 and 7,736.14 is: 10,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.48 : 18,912.74 = 7,736.14 : x
  2. Step 2: Convert to fraction form
    13,704.48/18,912.74 = 7,736.14/x
  3. Step 3: Cross multiply
    13,704.48x = 18,912.74 × 7,736.14
  4. Step 4: Simplify right side
    13,704.48x = 146,311,604.42
  5. Step 5: Solve for x
    x = 146,311,604.42/13,704.48
  6. Step 6: Final answer
    x = 10,676.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.